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3 years ago

12

Mathematics

1 answer:

hoa [83]3 years ago

8 0

Answer:

$\dfrac{x}{2}=25.5$

Step-by-step explanation:

Let the number be x.

Peter halves the number and gets an answer of 25.5.

It means,

Half of x equals 25.5. So,

$\dfrac{1}{2}x=25.5$

$\dfrac{x}{2}=25.5$

Hence, the required equation is $\dfrac{x}{2}=25.5$ .

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WILL GIVE BRAINLIEST IF CORRECT ANSWER!!!

Rom4ik [11]

Answer : 2√3

Given :-

A equilateral triangle with side length 4.

To Find :-

The value of x in the given figure.

As we know that in a equilateral triangle , perpendicular bisector , angle bisector and median coincide with each other .

So the perpendicular drawn in the figure will bisect the given side .
Therefore the value of each half will be 4/2 = 2 .

Now we may use Pythagoras theorem as ,

→ AB² = BC² + AC²

→ 4² = 2² + x²

→ 16 = 4 + x²

→ x² = 16-4

→ x² = 12

→ x =√12 = √{ 3 * 2²}

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Hence the required answer is 2√3 .

I hope this helps.

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